Current Conditions

Arnold, Missouri

93°F34°C
Hot

Feels like104°F40°C

Wind

SW 3 mph5 km/h

Humidity

56%

Cloud Cover

98%

As of Thursday, August 13, 2026 at 2:22 PM CDT

Today's Outlook

Day

Overcast and hot, with a high of 96°F36°C — feels like 106°F41°C. Light wind from the S around 4 mph7 km/h. Heat risk in the afternoon.

Night

Partly cloudy, with a low around 87°F30°C. Breezy from the SSE at 8 to 9 mph12 to 14 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
HotHigh 96°F36°CFeels 106°F41°CLow 87°F30°CFeels 93°F34°CPrecip 0 in0.1 mm9%Cloud 70%Wind SSE 6 mph10 km/hThursday: Overcast and hot, with a high of 96°F36°C — feels like 106°F41°C. Light wind from the S around 4 mph7 km/h. Heat risk in the afternoon. Thursday Night: Partly cloudy, with a low around 87°F30°C. Breezy from the SSE at 8 to 9 mph12 to 14 km/h.
HotHigh 96°F36°CFeels 104°F40°CLow 79°F26°CPrecip 0.01 in0.3 mm7%Cloud 61%Wind S 6 mph9 km/hFriday: Mostly cloudy and hot, with a high of 96°F36°C and morning low of 79°F26°C — feels like 104°F40°C. Light wind from the S around 4 mph7 km/h. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 82°F28°C. Breezy from the S at 7 to 10 mph12 to 16 km/h.
DrizzleHigh 94°F34°CFeels 101°F38°CLow 79°F26°CPrecip 0.02 in0.6 mm12%Cloud 72%Wind SSW 5 mph8 km/hSaturday: Overcast and hot, with a high of 94°F34°C and morning low of 79°F26°C — feels like 100°F38°C. Light wind from the SW around 5 mph8 km/h. 12% chance of drizzle in the morning. Heat risk in the afternoon. Saturday Night: Mostly cloudy, with a low around 81°F27°C. Breezy from the S at 6 to 7 mph9 to 11 km/h.
ShowersHigh 97°F36°CFeels 105°F40°CLow 80°F27°CPrecip 0.06 in1.4 mm30%Cloud 57%Wind W 6 mph10 km/hSunday: Mostly cloudy and hot, with a high of 97°F36°C and morning low of 80°F27°C — feels like 104°F40°C. Light wind from the W around 6 mph10 km/h. 16% chance of drizzle in the afternoon. Heat risk in the afternoon. Sunday Night: Mostly cloudy, with a low around 81°F27°C. Light wind from the W around 6 mph10 km/h. 30% chance of showers in the evening.
ShowersHigh 87°F30°CLow 73°F23°CPrecip 0.04 in1.1 mm21%Cloud 54%Wind NNW 6 mph10 km/hMonday: Mostly cloudy and hot, with a high of 87°F30°C and morning low of 73°F23°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. Humid. Monday Night: Mostly cloudy, with a low around 75°F24°C. Light wind from the N around 6 mph9 km/h. 21% chance of showers overnight.
ClearHigh 92°F33°CLow 69°F20°CPrecip 0 in0 mmCloud 22%Wind SE 4 mph7 km/hTuesday: Mostly clear and hot, with a high of 92°F33°C and morning low of 69°F20°C. Light wind from the SE around 3 mph6 km/h. Tuesday Night: Partly cloudy, with a low around 70°F21°C. Breezy from the ESE at 5 to 8 mph8 to 12 km/h.
DrizzleHigh 93°F34°CFeels 97°F36°CLow 75°F24°CPrecip 0.06 in1.6 mm18%Cloud 58%Wind SSW 7 mph12 km/hWednesday: Mostly cloudy and hot, with a high of 93°F34°C and morning low of 75°F24°C. Breezy from the SW at 8 mph12 km/h. 18% chance of drizzle throughout the day. Heat risk in the afternoon. Wednesday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the S at 7 to 8 mph12 to 13 km/h. 18% chance of drizzle before dawn.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdayAug 1396°F36°C
Feels 106°F41°C
87°F30°C
Feels 93°F34°C
0 in0.1 mm· 9%70%HotSSE 6 mph10 km/h
FridayAug 1496°F36°C
Feels 104°F40°C
79°F26°C0.01 in0.3 mm· 7%61%HotS 6 mph9 km/h
SaturdayAug 1594°F34°C
Feels 101°F38°C
79°F26°C0.02 in0.6 mm· 12%72%DrizzleSSW 5 mph8 km/h
SundayAug 1697°F36°C
Feels 105°F40°C
80°F27°C0.06 in1.4 mm· 30%57%ShowersW 6 mph10 km/h
MondayAug 1787°F30°C73°F23°C0.04 in1.1 mm· 21%54%ShowersNNW 6 mph10 km/h
TuesdayAug 1892°F33°C69°F20°C0 in0 mm· —22%ClearSE 4 mph7 km/h
WednesdayAug 1993°F34°C
Feels 97°F36°C
75°F24°C0.06 in1.6 mm· 18%58%DrizzleSSW 7 mph12 km/h
ThursdayAug 2087°F30°C71°F22°C0.05 in1.3 mm· 11%40%DrizzleN 6 mph10 km/h
FridayAug 2186°F30°C68°F20°C0.07 in1.8 mm· 14%43%DrizzleE 5 mph9 km/h
SaturdayAug 2288°F31°C68°F20°C0.07 in1.9 mm· 13%39%DrizzleE 5 mph9 km/h
SundayAug 2389°F31°C68°F20°C0.05 in1.2 mm· 9%35%ClearE 5 mph9 km/h
MondayAug 2491°F33°C68°F20°C0.02 in0.4 mm· 5%32%ClearESE 6 mph9 km/h
TuesdayAug 2593°F34°C70°F21°C0.02 in0.4 mm· 5%32%ClearSSE 6 mph9 km/h
WednesdayAug 2693°F34°C71°F22°C0.02 in0.6 mm· 9%34%ClearSE 6 mph9 km/h
ThursdayAug 2791°F33°C71°F22°C0.05 in1.3 mm· 10%42%DrizzleE 6 mph9 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 38.4328°N, 90.3776°W·Elevation: 184m·Timezone: America/Chicago·Population: 21,357